roll roofing over existing shingles

Rolling Roofing Over Existing Shingles A Practical Guide

When it comes to roof repairs or replacements, homeowners often explore various cost-effective options. One method has gained popularity over the years rolling roofing over existing shingles. This technique involves applying a new roofing material directly over old shingles, providing a quick and economical solution. In this article, we will discuss the benefits, considerations, and steps involved in rolling roofing over existing shingles.

Benefits of Rolling Roofing Over Existing Shingles

1. Cost-Effective Solution One of the primary advantages of rolling roofing over existing shingles is cost savings. Removing old shingles can be labor-intensive and costly, including labor costs and disposal fees. By installing a new roof over the existing shingles, homeowners can save significantly on these expenses.

2. Time-Saving The process of tearing off old shingles can be time-consuming. Rolling roofing allows for a quicker installation, which means homeowners can have a new roof in place with minimal disruptions to their daily lives.

3. Less Waste By not disposing of old shingles, rolling roofing reduces environmental waste. This approach is more eco-friendly and aligns with sustainable building practices.

4. Added Protection A new layer of roofing can provide additional protection against leaks and damage. Modern roofing materials are designed to be durable and can offer enhanced weather resistance.

5. Improved Aesthetics If your existing shingles are aging or have unsightly wear, rolling roofing can dramatically improve the look of your roof without the need for a full replacement.

Considerations Before Rolling Roofing

Before deciding to roll roofing over existing shingles, there are several factors to consider

1. Building Code Regulations Check local building codes and regulations to ensure this method is permissible in your area. Some jurisdictions may have restrictions on the number of layers of roofing material allowed.

2. Condition of Existing Roof The existing shingles must be in good condition. If the old roof is severely damaged, sagging, or has extensive leaks, it's advisable to remove the old shingles and start fresh. A solid foundation is essential for the new roofing material to adhere properly.

3. Roof Pitch The pitch of the roof will also influence the feasibility of rolling roofing. A steep pitch may not accommodate this method, and a more traditional roof replacement may be necessary.

4. Material Selection Choose high-quality rolling roofing materials for the best results. Options include modified bitumen, TPO (thermoplastic olefin), or rolled asphalt. Each material has its own advantages in terms of durability, weather resistance, and cost.

5. Warranty and Insurance Understand the warranty implications of installing a new roof over existing shingles. Some manufacturers may void warranties if installation is not performed according to their guidelines. Additionally, check with your insurance company to ensure coverage.

Steps to Apply Rolling Roofing

1. Prepare the Surface Ensure the roof deck is clean, dry, and free from debris. Trim any overhanging tree branches and secure loose shingles.

2. Cover Ventilation If necessary, install ventilation products to prevent moisture buildup beneath the roofing materials.

3. Lay Down Underlayment Apply a layer of roofing underlayment for added protection against moisture.

4. Install the Roofing Material Roll out the new roofing material, ensuring it overlaps the existing shingles appropriately. Use roofing cement or adhesive to secure the edges and seams.

5. Finish the Edges Trim any excess material and seal all seams and edges with roofing cement or appropriate sealant to prevent leaks.

6. Inspect the Work After installation, conduct a thorough inspection to ensure everything is properly secured and sealed.

Conclusion

Rolling roofing over existing shingles can be a practical and economical choice for homeowners looking to renovate their roofs. However, it is crucial to assess the condition of the existing roof and comply with local regulations before proceeding. With careful planning and execution, this method can provide an effective solution to roof maintenance needs while enhancing the home's overall appearance.